Breaker plate for crushers



Jane 2,

A. F. WILLIAMS. BREAKER PLATE FOR CRUSHERS.

' FILED SEPT. I. 1922.

Patented lien. 2, 19233.

ARTHUR F. VIILLIAIIZS, OF ST. IAQU IELTSSCUEI,

Y, 032 ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

Application filed September 1, 1922.

'1 0 all 1117mm it may concern Be it known that l. An'rnUn F. l VILLrAMs. a citizen ot the United States. residing; at St. Louis, State of Missouri, have invented, certain new and useful Improvements in Breaker Plates tor Crushers, or which the following is a specification.

This invention relates to certain new and useful improvements in breaker plates tor crushers, the peculiarities of which will be hereinafter fully described and claimed.

The main object of my invention. is to provide means on a breaker plate located in the path of rotary pivoted lmznmers for tent porarily holding; back interv-forcn or tangled material passing from the supply hopper over the breaker plate to the rotor chamber of Crushers, so that it will be gradually drawn in by the hammers.

In the accompanying drawing on which like reference numerals indicate corresponding parts, Fig. 1 represents a vertical sectional elevation across the shaft of a crusher embodying my invention; Fig. 2, a plan View of the same partly in section and partly broken away to show my improved breaker plate; Fig. 3. a detail edge view of my breaker plate with its relation to the rotor shaft and hammer discs indicated in dashed lines; and Fig. 4C, a rear face View of the breaker plate shown in Fig. 3.

The numeral 1 designates a suitable cas ing in which. is mounted a rotor shaft 2 having" discs 3 thereon to which are pivotally secured by hammer rods 4-. suitable rotary pivoted hammers 5 extending beyond the edge of said discs or other suitable hauuucr mounts, and the outer ends ot the hammers traveling in a cylindrical plane indicated by the hammer circle 6.

The casing has a supply hopper '7. the lower bot-tom face f wh'ch preferab y finned. by a de achable breaker p l. jacent to a sui le cl e show? The lower portion 01. the operative 'l. at this breaker plate is ifu'etl'crahly provided with a plurality of upwardly extending: rela tively thin ribs 8', each located in the plane of the respectively adjacent dis and extending within the cylindrical plane of the hammer circle, so that adj acent hammers pass on AS$IGTTQT$ T0 'WTILLIAMS FATENT BREAKER FLATE FOE CRUSHERS.

Serial no. 535,739.

according' to the horizontal spacing of the hammers that pass down between the ribs and close {0 the lower end of the operative ti e the breaker plate. The upper or a 10 of said wall is substantially ihe rotor shaft lying; in a higher n said rib shown in 3 or d upward from the breaker plate, erial entering the rotor chamber oper will be tei'nporarily retarded so that from the] until the h iuers tea r it apart from its tan- ;z led cont n and draw it into the rotor chamber where it is further reduced on the b eaker plate and case until discharged. it. n e regular feeding action is thus secured as the mat of tangled material such as steel t irningg s. is held. back from entering the rotor chamber till it is torn apart and can be better acted on than when it is delivered in mat directly into the rotor chamber.

The upper portion 13 of the edge 10 of the rib is preterably'clcsely adjacent to the disc lying; in the same plane said rib, and the edge 11 oi the rib adjacent to said disc edge'is curved eccentric to the axis of the shaft, so as to make a larger opening or space at the rear edge 12 and thus assist in freeing the upper edge of the rib from any material that may lodge. between the point and the edge (iii the disc.

shown in E2 and 4. the upper edge '10 is thini'ier than the lower rear edge l2, 'lorn'ied by the side surf" oi said. walls diverging dmvnn-zu'd tron; front to rear, and thereby giving: more clearance between the sides oi the luunmere and the trontcdpge of the rib as the hammers wine opposite said ll in thei r t. and avoiding any ble rterence or m-.- and front due to any lateral play of hammers. Whihthe said rib is inte- I claim? the axis of the rotorbeing in a higher In a heater crusher a casing having. a plane than said. ribs and the upper edge of 10 hopper in combination with a detachable the ribs being substantially in radial alinebreaker plate adapted to receive thereon the inent with said rotor.

5 discharge from said hopper, and provided In testimony whereof I have affixed my with a series of ribs projecting above the signature." r lower end'oi the samefand a rotor having I i v hammers adapted to pass between said ribs, I ARTHUR F. NVILLIAMS. 

